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The Sky at Night · S63 E8

Alien Worlds

2019-09-08

Astronomers have found more than 4,000 planets circling stars other than our own. What do we know about these alien worlds and how have we managed to detect them?

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Season 63 Episodes

  • E1Beyond Pluto
  • E2Is Cosmology in Crisis?
  • E3Marsquake!
  • E4Supermassive Black Hole
  • E5Return to the Moon
  • E6The Moon, the Mission and the BBC
  • E7Space Mission Special
  • E8Alien Worlds
  • E9Question Time
  • E10Rosetta: The Comet's Tale
  • E11Review of the Year